Installer of HIBUN Confidential File Viewer may insecurely load Dynamic Link Libraries and invoke executable files


Installer of HIBUN Confidential File Viewer provided by Hitachi Solutions, Ltd. contains an issue with the search path for DLL/executable files, which may lead to insecurely loading Dynamic Link Libraries and invoking executable files (CWE-427).

Eili Masami of Tachibana Lab. reported this vulnerability to IPA.
JPCERT/CC coordinated with the developer under Information Security Early Warning Partnership.
CVSS Severity (What is CVSS?)

CVSS V3 Severity:
Base Metrics 7.8 (High) [IPA Score]
  • Attack Vector: Local
  • Attack Complexity: Low
  • Privileges Required: None
  • User Interaction: Required
  • Scope: Unchanged
  • Confidentiality Impact: High
  • Integrity Impact: High
  • Availability Impact: High
CVSS V2 Severity:
Base Metrics 6.8 (Medium) [IPA Score]
  • Access Vector: Network
  • Access Complexity: Medium
  • Authentication: None
  • Confidentiality Impact: Partial
  • Integrity Impact: Partial
  • Availability Impact: Partial
Affected Products

Hitachi Solutions, Ltd.
  • Hibun confidential file viewer prior to version 11.20.0001


Arbitrary code may be executed with the privilege of the user invoking the installer.

[Use the latest installer]
Use the latest installer according to the information provided by the developer.
Users who already have installed HIBUN Confidential File Viewer do not need to re-install the application, because this issue affects the installer only.
Vendor Information

Hitachi Solutions, Ltd.
CWE (What is CWE?)

  1. No Mapping(CWE-Other) [IPA Evaluation]
CVE (What is CVE?)

  1. CVE-2017-10864

  1. JVN : JVN#94056834
  2. JVN : JVNTA#91240916
  3. National Vulnerability Database (NVD) : CVE-2017-10864
Revision History

  • [2017/10/11]
      Web page was published
  • [2018/03/07]
      References : Content was added